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    • 66. 发明公开
    • 타임 슬롯 CDMA 시스템에서 교차 타임 슬롯 간섭을억제하는 방법
    • 在CDMA CDMA系统中限制交叉干扰的方法
    • KR1020080043874A
    • 2008-05-19
    • KR1020087008378
    • 2006-09-07
    • 다 탕 모바일 커뮤니케이션즈 이큅먼트 코포레이션 리미티드
    • 왕잉민렌쉬얀후진링
    • H04B1/7105
    • H04L25/0212H04B1/7105H04B2201/70702H04W16/14H04W24/00H04W74/04H04W88/08
    • A method for restraining cross-slot interference in slot CDMA system includes the following steps: BS determining the location of exsiting cross-slot according to the configuration information of current cell and common frequency adjacent cells, and performing multi-cell channel estimation for the cross-slot and obtaining the result of channel estimation; the BS determining the code channel configuration information of common frequency adjacent cells, and grouping the determined code channel, and determining the common frequency adjacent cells' code channels which take part in joint detection; the BS obtaining detection data according to multi-cell channel eatimation result, each determined BS's code channels which take part in joint detection. By use of the invention, cross-slot interference between the BS sending downlink signal and the BS receiving uplink signal in the corresponding slot is decreased, and sysytem capability and stability is improved.
    • 一种用于抑制时隙CDMA系统中交叉时隙干扰的方法包括以下步骤:根据当前小区和公共频率邻近小区的配置信息确定排除交叉时隙的位置,并对交叉进行多小区信道估计 并获取信道估计的结果; BS确定公共频率相邻小区的码信道配置信息,并对所确定的码信道进行分组,以及确定参与联合检测的相邻小区的编码信道的公共频率; BS根据多小区信道吃饭结果获取检测数据,每个确定BS参与联合检测的码信道。 通过使用本发明,发送下行链路信号的BS与相应时隙中接收上行链路信号的BS之间的跨时隙干扰减小,提高了系统性能和稳定性。
    • 67. 发明公开
    • 기지국 시스템
    • 基站系统
    • KR1020070119022A
    • 2007-12-18
    • KR1020077022706
    • 2005-12-29
    • 다 탕 모바일 커뮤니케이션즈 이큅먼트 코포레이션 리미티드
    • 리쉬허쉬티에쭈왕홍보왕리웨이천시아오쪼우리우시앤짜오구오신우지앤펑
    • H04B7/155
    • H04W88/08H04W88/085
    • A base station system includes an indoor section and a remote radio frequency subsystem (RRS). Said indoor section includes RIU, CCU, BBU and GPSU as well as a local interface unit RRS includes a remote interface unit, a radio frequency transmitting and receiving unit (TRU)and an antenna. Said local interface unit and said remote interface unit can accomplish signal exchange: TRU is a radio frequency transmitting and receiving module of current RFU and can amplify analog radio frequency signal transmitted from remote interface unit and transport it to antenna so as to be transmitted. By selecting flexibly optical fiber cable or intermediate frequency cable connection said interface unit of present invention can provide two pulling mode, i.e. digital baseband pulling and intermediate frequency pulling. Said base station of present invention can reduce station sites of base station save network operating costs on the other hand base station can cover cells with intelligent antennas, accomplish the connection using an optical cable or intermediate frequency cable thus reduce engineering installation difficulty.
    • 基站系统包括室内部分和远程射频子系统(RRS)。 所述室内部分包括RIU,CCU,BBU和GPSU,以及本地接口单元RRS包括远程接口单元,射频发射和接收单元(TRU)和天线。 所述本地接口单元和所述远程接口单元可以实现信号交换:TRU是当前RFU的射频发射和接收模块,并且可以放大从远程接口单元发送的模拟射频信号并将其传输到天线以便发送。 通过选择灵活的光纤电缆或中频电缆连接,本发明的接口单元可以提供两种牵引模式,即数字基带拉和中频牵引。 本发明的所述基站可以减少基站的站点节省网络运营成本,另一方面,基站可以用智能天线覆盖小区,利用光缆或中频电缆实现连接,从而降低工程安装的难度。